Cerbo GX Installation

* Battery monitor: Select how the battery will be monitored - if at all. The battery monitor data will be used for DC-related
conditions.
* On loss of communication: If ever there is a communication breakdown between the Cerbo GX/Cerbo GX and the selected
battery monitor, and/or VE. Bus inverter/charger; and parameters have been set which depend on this information - choose
between the following actions:
• Stop the generator: If the generator is running, it will be stopped. (default)
• Start the generator: If the generator is not running, it will be started.
• Keep running: If the generator is running at the time of data loss this setting will keep it running.
* Do not run genset when AC 1 is in use: This option is ideal for back-up systems where a Quattro has mains/grid electricity
connected to its AC-in 1 terminal, and a Genset connected to its AC-in 2 terminal. With this option enabled, the Genset will only
start after a mains failure. And where a mains failure has occurred, the Genset will automatically be stopped again as soon as
mains power is restored. This functionality is not available for VE.Can connected Quattros.
The following parameters may be user-defined to trigger an automatic Generator start/stop:
• Manual
• State of charge (SOC)
• AC load*
• Battery current
• Battery voltage
• Inverter high temperature
• Inverter overload
• Periodic test run
(* The value measured here will be the total AC consumption of the system.)
Condition-parameters are prioritized in the order shown above. When a number of conditions are reached at the same time, only
the highest-priority condition will be shown as active. All enabled conditions will be evaluated - even if the generator is already
running. When the active condition has been satisfied, an un-met parameter in a lower-priority condition will keep the generator
running.
Relays triggered by Battery SOC
• Use Battery SOC value to start/stop: Toggle this feature on or off.
• Start when Battery SOC is lower than: Set the depletion level for auto-start.
• Start value during quiet hours: During Quiet hours it may be desirable to delay an auto-start until it really can't be avoided.
If Quiet hours has been defined, set a lower, more critical, autostart level.
• Stop when Battery SOC is higher than: Set the recharge level for auto-stop.
• Stop value during quiet hours: If Quiet hours has been defined, set a lower auto-stop level to achieve a shorter generator
run-time.
Relays triggered by Battery Current
• Use battery voltage value to start/stop: Toggle the feature on or off.
• Start when battery voltage is lower than: When a high AC demand is experienced which will soon exhaust the battery, the
generator can be auto-started to assist in meeting that demand. Set the current-level at which this will occur.
• Start value during quiet hours: If Quiet hours has been defined set a higher, more critical current value
Cerbo GX Manual
Page 65 GX - Generator auto start/stop